Methods for differential protection of Scott transformers (2017)
Journal Article
Sorrentino, E., Gupta, N., & Oliveros, E. (2017). Methods for differential protection of Scott transformers. Electric Power Systems Research, 147, 55-61. https://doi.org/10.1016/j.epsr.2017.02.018

This article describes different methods for the differential protection of Scott transformers, which are based on: (a) single-phase relays, (b) 3-phase relays for two-winding transformers, (c) 3-phase relays for multi-winding transformers, (d) speci... Read More about Methods for differential protection of Scott transformers.

MRI suites and residual design risk from static magnetic field (2010)
Journal Article
Price, T., Wamuziri, S., & Gupta, N. (2010). MRI suites and residual design risk from static magnetic field. Proceedings of the ICE - Management, Procurement and Law, 163(1), 7-15. https://doi.org/10.1680/mpal.2010.163.1.7

Since the inception of the UK Construction (Design and Management) Regulations 1994 through to the 2007 Construction (Design and Management) Regulations a duty has been imposed upon the client of premises where a notifiable project has been carried... Read More about MRI suites and residual design risk from static magnetic field.

Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer (2008)
Journal Article
McNeill, N., Gupta, N. K., Burrow, S. G., Holliday, D., & Mellor, P. H. (2008). Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer. IEEE Transactions on Power Electronics, 23, 591-599. https://doi.org/10.1109/TPEL.2007.915662

This paper investigates the application of reset voltage feedback for reducing errors due to droop in the signal derived from a current transformer sensing unidirectional current pulses in switched-mode power converter applications. Droop is minimise... Read More about Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer.

Assessment of the error in the average current sensed by the unidirectional current pulse transformer (2008)
Journal Article
McNeill, N., & Gupta, N. K. (2008). Assessment of the error in the average current sensed by the unidirectional current pulse transformer. IET Circuits, Devices and Systems, 2, 265. https://doi.org/10.1049/iet-cds%3A20070226

Advantages of using a current transformer (CT) for current sensing in switched mode power converters are that galvanic isolation is inherent, losses are low, the bandwidth is high and a high-amplitude output signal may be obtained. However, 'droop' o... Read More about Assessment of the error in the average current sensed by the unidirectional current pulse transformer.

Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing (2006)
Journal Article
Yella, S., Dougherty, M. S., & Gupta, N. K. (2006). Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing. Insight - Non-Destructive Testing & Condition Monitoring, 48(1), 10-20. https://doi.org/10.1784/insi.2006.48.1.10

This paper attempts to summarise the findings of a large
number of research papers deploying artificial intelligence
(AI) techniques for the automatic interpretation of data from non-destructive testing (NDT). Problems in the rail transport domain... Read More about Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing.

Active current transformer circuits for low distortion sensing in switched mode power converters. (2004)
Journal Article
McNeill, N., Gupta, N. K., & Armstrong, W. (2004). Active current transformer circuits for low distortion sensing in switched mode power converters. IEEE Transactions on Power Electronics, 19, 908-917. https://doi.org/10.1109/TPEL.2004.830075

The current transformer (CT) is frequently used for sensing applications in switched mode power converters. Advantages are that galvanic isolation is inherently incorporated, bandwidth is high, losses are low and that a high-amplitude output signal m... Read More about Active current transformer circuits for low distortion sensing in switched mode power converters..

Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction (2004)
Journal Article
Wilson, J. G., & Gupta, N. K. (2004). Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction. Measurement : journal of the International Measurement Confederation, 35(3), 243-250. https://doi.org/10.1016/j.measurement.2003.11.002

The need for accelerated curing of concrete in precast civil engineering components is discussed, and the techniques available to achieve this are presented, with particular emphasis on the use of direct electrical conduction.

The principles of th... Read More about Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction.

Lifelong Learning - getting started. (1997)
Presentation / Conference Contribution
Armitage, A., Gupta, N. K., & Rae, G. (1997, June). Lifelong Learning - getting started. Presented at 8th Annual EAEEIE Conference: Innovations and Quality in Education for Electrical and Information Engineering

An Investigation into the improvement of Local Minima of the Hopfield Network (1996)
Journal Article
Peng, M., Gupta, N. K., & Armitage, A. (1996). An Investigation into the improvement of Local Minima of the Hopfield Network. Neural Networks, 9(7), 1241-1253. https://doi.org/10.1016/0893-6080%2896%2900017-2

The paper investigates the improvement of local minima of the Hopfield network. A local minima escape algorithm (LME algorithm), is proposed for improving local minima of small-scale networks. Experiments on travelling salesman problems (TSP) show th... Read More about An Investigation into the improvement of Local Minima of the Hopfield Network.

Invariant object recognition by neural network. (1995)
Presentation / Conference Contribution
Peng, M., Gupta, N. K., & Armitage, A. (1995, November). Invariant object recognition by neural network. Presented at Proc 1995 Int. Conf. on Artificial Neural Networks

Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method. (1993)
Presentation / Conference Contribution
Buchanan, W. J., Gupta, N. K., & Arnold, J. M. (1993, March). Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method. Presented at Antennas and Propagation, 1993., Eighth International Conference on

The authors have used the FDTD method to model and predict the radiation patterns from a microstrip antenna. One problem in modelling microstrip antennas is that these structures are highly resonant. The authors have described techniques to reduce th... Read More about Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method..